A short would result in a blown fuse, so, if your fuses are all good, I would eliminate that. Do you have a 12 volt test lamp? Turn the low beams on, and remove the wiring connector from the low beam bulb. Hook the test light clip to the battery negative terminal, and poke the pointy end into each of the 3 terminals on the low beam bulb connector. Advise me if your test lamp illuminates, and which colour wire the lamp illuminates on. Thne we can diagnose your problem further. Thanks.A short would result in a blown fuse, so, if your fuses are all good, I would eliminate that. Do you have a 12 volt test lamp? Turn the low beams on, and remove the wiring connector from the low beam bulb. Hook the test light clip to the battery negative terminal, and poke the pointy end into each of the 3 terminals on the low beam bulb connector. Advise me if your test lamp illuminates, and which colour wire the lamp illuminates on. Thne we can diagnose your problem further. Thanks.

1 Answer

My brake light on my 1990 geo, Right side did the same thing. It was the ground wire on the light itself. It had gotten hot and was not getting good contact, so I put a small bolt with a nut on it thru the plastic light panel to help it make contact to the ground.

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Check for power with a test light with the light connected. If you have power then its the ground. If no power then you will need to trace the wire back to find break. As I recall they did have seperate fuse for left and right headlight high & low beam. Also did you get a defective new bulb?

check low beam fuse when switched on if it has voltage registering across the fuse ,if there is voltage across the low beam RHS fuse then it is possibly a pinched wire from the headlight running back towards inside of the car

low beam is a bulb on its own,usually under the big main bulb.the main big bulb works your normal night time driving and your high beam,ie.flashers.if 1 low beam has blown its more than likley a power serge blown the other side as they run off the same wiring.hope this helps.

if the fuses are good then you need to check for power and ground at the headlight plug that attaches to the headlight bulb if you have a good power and ground there and the connections are good then the bulbs are both no good.or if you can tell the bulbs are burnt out by looking at them then you don`t have to check powers and grounds.you also can directly feed power and ground to the bulb and check both the terminals for high beam and low beam as you cannot tell which is which by looking at the terminals

You need to change the head light bulbs, they have two elements one for normal lighting and one for high beams, the low beam elements on those light bulbs are burnt, install new ones and you'll fine.
Good Luck